Packing.



O. M. STUVE.

PACKING.

APPLICATION FILED AUG. 19. 1914.

1,206,940. Patented Dec.-5, 1916.

m. J1. J11

Inventor:

21 Atty by me, the invention includes one or'more UNITED STATES PATENT oFmcE.

can 1:. same, or n'aooxnm, new YORK.

raoxme.

speciflcatlbn' ot Letters Patent.

bppllcation fllcd s ut 1a, 1914. Serial No. 857,450.

To all whom z'tmay concern:

Be it knownthat I, OLE M. STUVE, a citizen of the United States of America, residingat Brooklyn, New York, have invented certain new and useful Improvements in 7 Packing, of which thefollowmg is a specification.

My invention relates to improvements in packing for piston rods and analogousob- ]ects. The principal purpose of my -invention is to provide a fluid tight packing, so constructed as to be expansible at the points of contact with the iston rod or plunger, but to be inexpansibi this manner I am enabled torevent all escape of fluid while avoiding t e creation of excessive friction between the moving plston, piston rod or plunger, and its packmg. .In the embodiment at present preferred packing elements or rings, preferably formed of sections, and comprising a body of fibrous material, held in or secured to a metallic framework. ,That portion of the metallic framework which is designed to contact with the piston rod is made of, an expansible metal, such as nickel, while the rest of the framework may be of brass.

The invention is illustratively exemplified in the accompanying drawing, wherem+- improved packing; Fig. 2 is an end view thereof; Fi 3 is a cross sectional view, partly in e evation, substantially on the line 3-3 of Fig. 2; and; Fig.4 is a detail perspective view, partly in section of, parts of several packing rings or elements.

In the drawing, 10'denotes the neck bush- 7 ing of a c linder, and 10 denotes a gland, between w ich members the acking proper is clamped more or less tight y by means of the boltsv 11 and nuts 12. The neck bushing and gland are of usual or ordinary construction and require no further description.

Extendin through the gland 10Pare a plurality of rods 13, preferably of brass or nickel and arranged iametrically opposite so each other. At one of their ends, the rods extend beyond the flange 10 of the gland and are threaded to receive the nuts 14. At their opposite ends, the rods 13 ri 'dly carry a collar or ring 15, which is sp 't or sectional, and has rabbet joints 15, each unit edby means of a screw 16*? or slmilaf se e at other points. In

Figure 1 is an elevational view of my' curing means. Thecollar 15 is carried by the rods 13 beyond the sleeve end 10 of the gland, a distance sufii'cient to allow of interposing any desired number of packing rings, .about to be described, between the collar 15 and such sleeve end.

The packing rings, which are preferably split and consist of like halves, comprise each a tightly compacted body portion 16, of fibrous material such as asbestos, and a metallic frame or support which includes the inner ring member 17, the upper and lower ring members 18, and the outer ring member 19. The inner ringmembers 17, which are adapted to contact with the mov- Patented Dec. 5,1916. a

ing member to be packed,isuch as a piston rod, preferably consist .of 'a fairly expansible metal, such as nickel, while the members 18 and 19 preferably consist of brass. Owing to the presence of the fibrous asbestos body 16 there will be no appreciable heat reach the members 18 and 19, and they will consequently not be subject to expansion. All the metallic members 17, 18

and 19, arefirmly attached to the asbestos body 16, by means of? screws 20, or the like, arranged at intervals and passing through the metal rings into the asbestos body portion 16.

One of the packing rings, for example,

that designatedX in Fig. 4, is pierced by the rods 13, While the other rings are free, and have their contiguous ends grooved or undercut, as at Y, to snugly engage the peripheries of the rods 13. The packing rings are arranged to break joints, z. e. the contiguous ends of the sections of one ring will be sta gered with relation to the contiguous en s of the sections of an adjacent rin This clearly a pears in Fig, 4, in

installations by merely adding or taking away packing rings. After a greater or less number of rings have been laced 1n position between the collar 15 an the end @ieoeeee,

10 of the'gland 10", the nuts 14; sre'tightsenting e continuous metallic surface to the ened, whereby the feckin clamped in :osition. herear the land said packing range between saidgland' t with thepact ported there y is said' ushin I f attached to theneck ushm by means of 4, A pac g for vthe purpose specified, the bolts 11 and nuts 12. en the packcomprising theneck bushing of a cylinder mg is to be disassembled, as for the inserand? an oppositely disposed pland, rods so tion-of new rings or for any. other pur ose, cured to said gland, mtione V, the nuts 12 are loosened so that the g and between said land and seidv neck'bushing', 10 may be removed from the bushing, percertainflof sai packing'rings being-held by mitting the removal of the packing as an said rods and-others of. said packmg entity, and then the nuts 14' are loosened having'the contiguous en by which the rings are freed from compresgrooved and ta against the peripheries 50 S1011 and may be removed, and others inof said rods, and means for securin said I 15 sorted packing rings between said gland an said y I claim v neck bushing. v

1. A packin for the purpose specified, 5. A packing for the purpose specified,

material, an expa 'ble metal membervseand an oppositely disposed g n re s passcured to the inner face of said body and ingthrough said land, an annular collar cle to be packed, and additional metal memtional pi cking rings abutting-said collar at bers secured to the outer f of said body. one on 2. Agpacking for the purpose specified, certain-of said 8 being held by said rods 5 comprismgan annularbody of compacted and others of said ringshaving the con- '.asbestos, a nickel ring securedto the inner t1 ous ends oftheir sections red and periphery of said body and brass s ta 'ng againsttheripheriesof said secured, respectively to the outer peri hery said packing rings 1warr 1; ed to br and to thetop and bottomfaceso said joints, means for edjustably mung said body rods to the gland and mfor securing 3. A packing for the purpose specified, the gland to the neck bushing. j 7 comprising the neck bushing of a cylinder V In testimony whereof I have aed my and an op ositely disposed land I, n signature'in s.- f two -w1tn rings there etween, each sai "1. ring E ST containing 0i a-camacted boy brous Witne:

' material and a meta'c framework to'which Orro MUNK,

said body 1s secured said framework pre-' y F. T. nnrwo rings are article to be packed, end means for securin 1 40 7 pac mes as ds of their sections comprising a ody of compacted fibrous comprising the neckibg ot a c lnnder a presenting a continuous surface to the articarried at one of t e ends of said rods, sec- I end said gland at the other-end, Y

eel- 

